Essential oil diffuser



FIG. 1 is a front elevational view of an essential oil diffuser showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a perspective view thereof.

FIG. 3 is a right side view thereof, the left side view being a mirror image of the right side view.

The broken lines shown form no part of the claimed design. 

CLAIM The ornamental design for an essential oil diffuser, as shown and described. 